Authorize AIM - Default or Qphoric module - which better?

OpenCart comes with an Authorize.net AIM module

There is also the Qphoria Authorize.net AIM module:
http://theqdomain.com/ocstore/opencart_ ... ze_net_aim

Which is better?

What does the Qphoric module do that the default does not?

Many thanks

Mine was just available first. After while it was added to the core by Daniel.. I just kept mine updated.
The differences:
Mine doesn't require the MD5 hash (nor does it support it)
Mine does extra card verification before sending (although not really needed since the gateway also checks)
The Core one has an ajax "Please wait"
The Core one requires MD5 hash

Okay, thanks